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1、6.H9.寸+oxaLnCNtH寸.OXS.CN0Z+8卜HSX9-COHcnoxt-c001X80.17H00IX8卜onHOO-CX9SOHXTXSZhcnzehHot-l-8uCNoxsCN.mH寸XCNCNO丄OXCNOOH寸X寸-To1X0H99.049.9Hao.oH寸OXS.CNH寸os.oxCN.tHH6.0XH8.0X9.0H8.OX6OH8XSZ-CUSX寸zH9CN.OXCNOHm.oxm.oH9onxm.oHs.o乙HCNtx寸XS.CNHs.xoH寸.oxCN9moHootxso.tHh.m+m寸.0丄X66.mHmoxrcHSCN.-CX8OUS.CNXS寸.0寸.
2、ox8寸.寸H8.0X9S9T0.0X卜.mH9mx90.mS.OX寸.9TX寸.89ZX寸8&Hsxs.o9.0XCN.SHO-I-6.9-C(曹HCNT0X寸00HHX8T0聖毎旺7H8.CN+CNZHSN+5.25x535.4x4.20.042x0.540.76x0.320.12x0.5x0.16二4.8x0.25二0.125x1.4（保留两位小数）5.25x535.4x4.20.042x0.540.76x0.325.25x535.4x4.20.042x0.540.76x0.322.5三0.7二（保留三位小数）10.1-3.3=（商用循环小数）5.25x535.4x4.20.042x0.
3、540.76x0.325.25x535.4x4.20.042x0.540.76x0.3210.75三12.5二（用乘法验算）3.25x9.04=（用除法验算）5.25x535.4x4.20.042x0.540.76x0.325.25x535.4x4.20.042x0.540.76x0.323、脱式计算(能简算的要简算)2.5x7.1x416.12x9916.125.2x0.90.97.28x99+7.284.3x50x0.2642.64x0.526x15.715.7x24(2.2750.625)x0.283.94+34.3x0.21.2x(9.6-2.4)-4.88.9x1.1x4.72.7x
4、5.4x3.93.6x9.85-5.468.05x3.4+7.66.58x4.5x0.92.8x0.5+1.58324.90.94.84.8x0.55.25x535.4x4.20.042x0.540.76x0.325.25x535.4x4.20.042x0.540.76x0.32(1.250.125)x84.8x100.156.5x9956.57.09x10.80.8x7.094.85+0.35-1.48.7x17.4-8.7x7.412.5x0.4x2.5x80.87x3.16+4.649.5x1010.68-(5.2-3.5)x1.2540.5-0.81x0.184.8x(15-2.4)0
5、.25x185x404.4x0.83.4x0.842.x1.1.x1.752.37x6.3+2.37x3.72.5x(3.8x0.04)7.69x101213.x0.x82576.81+6.81x99(9.37+937+937+937)x252.5x1.25x0.323.8x10.13.8x10.10.25x39+0.255.25x535.4x4.20.042x0.540.76x0.320.125x7246x0.33+54x0.33(8x5.27)x1.256.81+6.81x995.25x535.4x4.20.042x0.540.76x0.325.25x535.4x4.20.042x0.540.76x0.320.25x185x406.8x0.75-0.53.75-0.1252.751.53+23.4-7.29.5x995.25x535.4x4.20.042x0.540.76x0.325.25x535.4x4.20.042x0.540.76x0.3213.5x0.9812.5x8.85.25x535.4x4.20.042x0.540.76x0.32
